[Samba] passdb.tdb shows no users in new 4.3.11-ubuntu install?

[David H. Durgee]

Rowland Penny via samba wrote:
> On Tue, 12 Jun 2018 11:56:14 -0400
> "David H. Durgee via samba" <samba at lists.samba.org> wrote:
>
>> Rowland Penny via samba wrote:
>>> On Tue, 12 Jun 2018 09:31:57 -0400
>>> "David H. Durgee via samba" <samba at lists.samba.org> wrote:
>>>
>>>> I enabled logging at level 3 on my new 4.3.11-ubuntu (sylvia)
>>>> system to see why I was not opening a share properly from another
>>>> system. The log shows:
>>>>
>>>>       [2018/06/11 20:49:13.418108,  3]
>>>>       ../source3/auth/auth.c:178(auth_check_ntlm_password)
>>>>          check_ntlm_password:  Checking password for unmapped user
>>>>       [AGI-NET]\[dhdurgee]@[Z560] with the new password interface
>>>>       [2018/06/11 20:49:13.418124,  3]
>>>>       ../source3/auth/auth.c:181(auth_check_ntlm_password)
>>>>          check_ntlm_password:  mapped user is:
>>>> [DG41TY]\[dhdurgee]@[Z560] [2018/06/11 20:49:13.418178,  3]
>>>>       ../source3/auth/check_samsec.c:400(check_sam_security)
>>>>          check_sam_security: Couldn't find user 'dhdurgee' in
>>>> passdb. [2018/06/11 20:49:13.418201,  2]
>>>>       ../source3/auth/auth.c:315(auth_check_ntlm_password)
>>>>          check_ntlm_password:  Authentication for user [dhdurgee] ->
>>>>       [dhdurgee] FAILED with error NT_STATUS_NO_SUCH_USER
>>>>       [2018/06/11 20:49:13.428484,  3]
>>>>       ../source3/auth/auth_util.c:1602(do_map_to_guest_server_info)
>>>>          No such user dhdurgee [AGI-NET] - using guest account
>>>>
>>>>
>>>> So it appears that "dhdurgee" is not in passdb for some reason.
>>>> Checking this on that system shows:
>>>>
>>>>       dhdurgee at DG41TY ~ $ sudo pdbedit --list --verbose
>>>>       [sudo] password for dhdurgee:
>>>>       WARNING: The "syslog" option is deprecated
>>>>       dhdurgee at DG41TY ~ $
>>>>
>>>>
>>>> So there are no users in passdb?  Doing the same on 3.6.25 (maya)
>>>> shows unix users nobody and dhdurgee as expected.
>>>>
>>>> Is the passdb compatible between the two?  Can I simply copy the
>>>> 3.6.25 version over the 4.3.11 one?  Shouldn't the passdb have been
>>>> initialized properly when samba was installed?  Is there an
>>>> initialization utility to run to do so? The 3.6.25 version of
>>>> passdb.tdb is 36864 bytes while the 4.3.11 version is 421888 bytes
>>>> respectively.
>>>>
>>>> Dave
>>> Welcome to the wonderful world of running Samba as a standalone
>>> server ;-)
>>>
>>> You need to create your users and groups on the new server, both as
>>> Unix & Samba users and groups, you will also have to add users to
>>> the required groups. You will also have ensure that the connecting
>>> user has the same password as the Samba user. This can quickly
>>> become a pain, such as when a connecting user changes their
>>> password, you need to come up with a way to also change the users
>>> Samba password as well.
>>>
>>> You may be able to copy the Samba tdb files from one server to the
>>> other, I am unsure because I have never tried it, I abandoned
>>> standalone servers so time ago.
>>>
>>> Rowland
>> Ah, I was wondering about that.  Do the tdb files need to be copied
>> as a set?  Given my 3.6.25 standalone is working as it should this
>> certainly seems the first thing to try.
>>
>> Dave
>>
> I don't know, I migrated to Samba AD, because it is easier to maintain,
> there is only one place to maintain users & passwords.
>
> All I can suggest is to try it, backup everything, then replace
> everything in /var/lib/samba (if that's where Samba lives ;-)
>
> Rowland
ITS ALIVE!  Copying all the .tdb files from /var/lib/samba on my 3.6.25 
partition to replace their 4.3.11 counterparts has corrected the 
problems I have been encountering with the new samba release. Thanks to 
everyone who contributed in helping me solve this issue. On to other 
problems with the new system.

Dave